Features
Colorizing black-and-white photos
Instant classical styles vs the DDColor AI model, the consent-gated download, and what colorization honestly can and cannot recover.
The Photo Colorizer adds colour to black-and-white images two ways, and the difference matters more than with most tools.
Realistic (AI) vs the instant styles
- Realistic runs DDColor, a neural network that looks at the content of your photo and predicts plausible colour region by region: skin tones read like skin, foliage reads green, sky reads blue. It is the mode you want for family photos and historical scans.
- Vintage, Sepia, Saturated, and Pastel are classical LAB-colour-space treatments. They apply instantly, need no download, and give the image a deliberate look rather than a prediction of reality. Think of them as toning, not restoration.
The same Realistic engine is available inside the Image Editor. The AI Colorize button sits next to Grayscale, suggests itself when a black-and-white photo is detected, and is fully undoable with Ctrl+Z.
About the 460 MB download
DDColor is a large model, so it is consent-gated: the first time you pick Realistic, the tool asks before fetching (~460 MB, once). Accept and it caches on your device. Later runs are instant and work offline. Decline and you keep the four instant styles with zero download. Nothing ever fetches silently.
What colorization honestly is
A black-and-white photo does not contain its original colours. That information was never captured. No tool on earth recovers it. What DDColor does is predict statistically plausible colour from visual context. A dress the model paints blue may well have been red; there is no way for it to know.
That is why the tool shows a before/after slider rather than just the result: judge the output as a plausible interpretation, label it as colorized when it matters (archives, journalism, family history), and keep the original.
Getting better results
- Contrast first. The model reads luminance. Faded, low-contrast scans give it little to work with, a quick levels fix in the editor before colorizing pays off.
- Resolution second. Colorize at the source resolution, then run the AI Upscaler afterwards if you need a bigger file. Upscaling first just makes the colorizer slower for no quality gain.
- Very dark scans tend to come out muted: the model correctly refuses to invent colour where it cannot see structure.
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